Java如何获取当前运行时详细信息？

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javapackage systeminfo;

import java.util.Iterator;import java.util.Map.Entry;import java.util.Properties;

public class sysinfo { public static void main(String[] args) { Properties p=System.getProperties(); Iterator it=p.entrySet().iterator();

while (it.hasNext()) { Entry entry=it.next(); System.out.println(entry.getKey() + : + entry.getValue()); } }}

sysinfo_properties.java

package systeminfo; import java.util.Iterator; import java.util.Map.Entry; import java.util.Properties; public class sysinfo { public static void main(String[] args) { Properties p = System.getProperties(); Iterator > it= p.entrySet().iterator(); while(it.hasNext()){ Entry item=it.next(); System.out.print(item.getKey()+"==="); System.out.println(item.getValue()); } } } sysinfo_easyString.java

package systeminfo; public class sysinfo { public static void main(String[] args) { String s = System.getProperties().toString(); System.out.println(s); } } sysinfo_StringSplited.java

package systeminfo; public class sysinfo { public static void main(String[] args) { String s = System.getProperties().toString(); System.out.println(s); String[] ss=s.split(","); for(String e:ss){ System.out.println(e); } } }